166 lines
4.0 KiB
C++
166 lines
4.0 KiB
C++
/*
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* matrixops.h
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*
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* $Id$
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*
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* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version. The Blender
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* Foundation also sells licenses for use in proprietary software under
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* the Blender License. See http://www.blender.org/BL/ for information
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* about this.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL/BL DUAL LICENSE BLOCK *****
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*/
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#ifndef MATRIXOPS_H
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#define MATRIXOPS_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* ------------------------------------------------------------------------- */
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/* need rewriting: */
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/**
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* copy the left upp3 3 by 3 of m2 to m1
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*/
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void MTC_Mat3CpyMat4(float m1[][3], float m2[][4]);
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/* ------------------------------------------------------------------------- */
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/* operations based on 4 by 4 matrices */
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/**
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* Copy m1 to m2
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*/
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void MTC_Mat4CpyMat4(float m1[][4], float m2[][4]);
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/**
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* Multiply all matrices after the first, leave the result in the
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* first argument
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*/
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void MTC_Mat4MulSerie(float answ[][4],
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float m1[][4], float m2[][4], float m3[][4],
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float m4[][4], float m5[][4], float m6[][4],
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float m7[][4], float m8[][4]);
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/**
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* m1 = m2 matprod m3
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*/
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void MTC_Mat4MulMat4(float m1[][4], float m2[][4], float m3[][4]);
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/**
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* Do vec^t prod mat, result in vec. Ignore vec[3] (vec is a
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* float[3])
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*/
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void MTC_Mat4MulVecfl(float mat[][4], float *vec);
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/**
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* Invert mat, result in inverse. Always returns 1
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*/
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int MTC_Mat4Invert(float inverse[][4], float mat[][4]);
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/**
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* Make the set of mat orthonormal (mat should already be orthogonal)?
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* (doesn't appear to normalise properly?)
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*/
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void MTC_Mat4Ortho(float mat[][4]);
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/**
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* vec = mat prod vec, result in vec, ignore fourth component entirely
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* (4th component is _not_ accessed!!! vec is 3d)
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*/
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void MTC_Mat4Mul3Vecfl(float mat[][4], float *vec);
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/**
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* vec = mat prod vec, result in vec
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*/
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void MTC_Mat4MulVec4fl(float mat[][4], float *vec);
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/**
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* Set <m> to the 4-D unity matrix
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*/
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void MTC_Mat4One(float m[][4]);
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/**
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* Swap matrices m1 and m2
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*/
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void MTC_Mat4SwapMat4(float m1[][4], float m2[][4]);
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/**
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* Copy m2 to the top-left 3x3 of m1, don't touch the remaining elements.
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*/
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void MTC_Mat4CpyMat3nc(float m1[][4], float m2[][3]);
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/**
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* m1 = m2 * m3, but only the top-left 3x3
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*/
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void MTC_Mat4MulMat33(float m1[][3], float m2[][4], float m3[][3]);
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/* ------------------------------------------------------------------------- */
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/* Operations based on 3 by 3 matrices */
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/**
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* Do vec^t prod mat, result in vec.(vex is 3d)
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*/
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void MTC_Mat3MulVecfl(float mat[][3], float *vec);
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/**
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* Copy m1 to m2
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*/
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void MTC_Mat3CpyMat3(float m1[][3], float m2[][3]);
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/**
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* m1 = m2 prod m3
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*/
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void MTC_Mat3MulMat3(float m1[][3], float m3[][3], float m2[][3]);
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/**
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* vec = vec prod mat
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*/
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void MTC_Mat3MulVecd(float mat[][3], double *vec);
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/**
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* Guess: invert matrix
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* result goes to m1
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*/
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void MTC_Mat3Inv(float m1[][3], float m2[][3]);
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/**
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* Sort of a determinant matrix? Doesn't seem very adjoint to me...
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* result goes to m1
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*/
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void MTC_Mat3Adj(float m1[][3], float m[][3]);
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/**
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* Set <m> to the 3D unity matrix
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*/
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void MTC_Mat3One(float m[][3]);
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/* ------------------------------------------------------------------------- */
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#ifdef __cplusplus
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}
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#endif
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#endif /* MATRIXOPS_H */
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